FILTER CANISTER FLOW DISTRIBUTION VISUALIZATION EXPERIMENTS

Authors
  1. Meunier, P.
  2. Pedersen, C.
  3. Constantine, L.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
A method of visualizing the airflow distribution inside a charcoal filter canister was developed to study the new plastic canister design. The method uses silica gel (of the same size as the charcoal used in the canister) coated with an acid/base dye which discolors from yellow to a dark blue. The depth of the reacted dye is a direct representation of the flowrate. A technique to observe the cross-section of the canister was developed, and canisters were subjected to various flowrates in different configurations. It was found that the current plastic canister design is sound, and that its uniform flow distribution will ensure optimal use of the charcoal and thus the highest efficiency. The retainer designs evaluated (the current C2 canister retainer and that of the new plastic canister) did not seem to have an effect on the flow distribution.
Report Number
DREO-TN-91-17 — Technical Note
Date of publication
15 Mar 1991
Number of Pages
27
DSTKIM No
92-00547
CANDIS No
103444
Format(s):
Hardcopy;Originator's fiche received by DSIS

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